Mod Chooser move.

Moved code for mod chooser to mod.common.

OpenRA.Mods.Common/Widgets/Logic/ButtonTooltipLogic.cs

@@ -0,0 +1,41 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets.Logic
+{
+	public class ButtonTooltipLogic
+	{
+		[ObjectCreator.UseCtor]
+		public ButtonTooltipLogic(Widget widget, ButtonWidget button)
+		{
+			var label = widget.Get<LabelWidget>("LABEL");
+			var font = Game.Renderer.Fonts[label.Font];
+			var labelWidth = font.Measure(button.TooltipText).X;
+
+			label.GetText = () => button.TooltipText;
+			label.Bounds.Width = labelWidth;
+			widget.Bounds.Width = 2 * label.Bounds.X + labelWidth;
+
+			if (button.Key.IsValid())
+			{
+				var hotkey = widget.Get<LabelWidget>("HOTKEY");
+				hotkey.Visible = true;
+
+				var hotkeyLabel = "({0})".F(button.Key.DisplayString());
+				hotkey.GetText = () => hotkeyLabel;
+				hotkey.Bounds.X = labelWidth + 2 * label.Bounds.X;
+
+				widget.Bounds.Width = hotkey.Bounds.X + label.Bounds.X + font.Measure(hotkeyLabel).X;
+			}
+		}
+	}
+}